Product Overview
The Vertiv Liebert ITrust UL33 (40/60/80/100kVA) is full digital online double-conversion three-phase UPS developed by former Emerson Vertiv, specially designed for medium-sized telecom equipment room, small IDC, finance room and industrial precision equipment backup power. Equipped built-in Δ/Z0 isolation output transformer and advanced dual DSP full digital control platform, it thoroughly isolates grid surge, harmonic and abnormal interference from backend loads, supporting flexible matching of lithium iron phosphate battery and traditional VRLA lead-acid battery. Adopts decentralized parallel technology to realize max 8 units parallel redundant expansion, power range covers 40kVA,60kVA,80kVA,100kVA four mainstream specifications, widely applied in global communication, banking, industrial automation and medical equipment uninterrupted power projects.
Key Features
Standard online double-conversion topology + built-in isolation transformer, eliminate DC component and third harmonic disturbance of output voltage
Advanced IGBT high-frequency rectifier + dual DSP full digital control, input PF≥0.99, THDi<3% to save grid energy consumption
Ultra-wide input tolerance: voltage -45%~+15%, frequency 50Hz±10%, perfectly adapt unstable generator and poor regional mains grid
Independent decentralized parallel design, max 8 units online parallel expansion, digital current sharing control with ultra-low system circulation current
Intelligent battery management system (BMS), auto charge/discharge control, extend lithium/lead-acid battery service life effectively
6-inch large-size Chinese & English dual-language LCD touch screen, full front operation & maintenance design for easy onsite troubleshooting
Built-in D-grade lightning protection module, independent layered closed air duct + redundant fan cooling, adapt high-temperature harsh cabinet environment
Multi-protocol communication: RS485/RJ45/SNMP, support remote centralized monitoring and unattended site management
Dual battery compatibility: seamless access telecom lithium battery and conventional lead-acid storage battery for flexible runtime configuration
Technical Specifications
| Item | Details |
| Model | Liebert ITrust UL33 (40/60/80/100kVA Optional) |
| Brand | Vertiv / Former Emerson |
| Input | 3P3N 380/400VAC,50Hz±10% |
| Output | 3P3N 380/400VAC, PF=0.8 |
| Topology | Online Double Conversion + Built-in Isolation Transformer |
| Input PF | ≥0.99, Input THDi<3% |
| Parallel Capacity | Max 8 Units Parallel Connection |
| Compatible Battery | Telecom Lithium Battery / VRLA Lead Acid Battery |
| Display | 6-inch Chinese & English Dual LCD |
| Communication | SNMP, RS485, Dry Contact Alarm |
| Working Temp | 0℃ ~ +40℃ |
| Compliance Standard | IEC62040, CE |
| MOQ | 2 Sets |
| Unit Price | $299~$699 / Set |
| Delivery Time | 1~2 Weeks |
| Packing | Export Wooden Case |
| Warranty | 12 Months |
Applications
Medium-Sized 4G/5G Core Telecom Equipment Room UPS Backup Power
Small & Edge Data Center Server Room Uninterrupted Power Supply
Banking, Securities & Financial Computer Room Critical Load Protection
Medical Precision Instrument & Hospital Equipment Emergency Power System
Factory Industrial Automation & PLC Control Cabinet UPS
Government Office & Intelligent Building Central Power Protection



Why Choose Us
We are a professional manufacturer and one‑stop solution provider for communication DC power systems, boasting mature R&D strength, large‑scale production capacity and flexible service modes. We fully support OEM and OBM cooperation, helping global partners create differentiated power products.
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Powerful R&D & Customization Ability
We have a professional technical team with years of experience in the power industry. We can provide personalized customized services covering power configuration, external interfaces, functional parameters, appearance design and logo printing, to satisfy diverse demands from telecom operators, system integrators and equipment manufacturers.
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Comprehensive OEM & OBM Services
We offer full‑cycle cooperation support from product design, prototype testing, certification to mass production. With efficient development process and strict quality management, we help you quickly launch products and build exclusive brand advantages.
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Large Production Capacity & On-time Delivery
We own standardized production workshops and complete production lines. Relying on a stable supply chain and mature production technology, we maintain sufficient inventory and strong production capacity, ensuring on-time delivery even for bulk orders and long-term cooperative supply.
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Strict Multi-level Quality Inspection
All products will pass full-load operation test, high-low temperature aging test, safety performance test and simulated on-site operation test before delivery. We adopt high-quality original components and implement strict quality control standards to guarantee long-term stable operation of products in various harsh environments.
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Full Lifecycle Technical & After-sales Support
We establish a complete service system including pre-sales consultation, in-sales technical guidance and after-sales maintenance. Our technical team responds quickly to provide remote debugging, on-site technical guidance and spare parts supply, protecting the stable operation of your power system all the time.
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Rich Global Project Experience
Our products have been exported to many countries and regions, widely applied in communication, data center, industrial control, new energy and other fields. With rich project experience, we can provide targeted power solutions for different regional standards and application scenarios.
We sincerely look forward to establishing long‑term stable cooperative partnership with you.